CN217086333U

CN217086333U - Network transformer

Info

Publication number: CN217086333U
Application number: CN202220636363.4U
Authority: CN
Inventors: 宋光新; 王东新
Original assignee: Hongqing Electronic Dongguan Co ltd
Current assignee: Hongqing Electronic Dongguan Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-07-29
Anticipated expiration: 2032-03-23

Abstract

The utility model relates to a network transformer, include: a rubber shell; the winding assemblies are uniformly arranged in the rubber shell at intervals; the winding assembly comprises a main magnetic ring and an auxiliary magnetic ring which are arranged in pair, and windings wound on the main magnetic ring and the auxiliary magnetic ring respectively; the main magnetic ring and the secondary magnetic ring are arranged at intervals, and the axial lead of the main magnetic ring is parallel to the axial lead of the secondary magnetic ring; the axial leads of the adjacent main magnetic rings are overlapped or mutually vertical; the winding is a multi-strand multi-core stranded wire, the diameter of the core wire of the winding is 0.05mm-0.20mm, the diameter of the stranded wire of the winding is 0.20mm-1.20mm, and the lay length of the stranded wire of the winding is 1-20 knots/cm. The network transformer is simple in structure and convenient to assemble, the main magnetic ring and the secondary magnetic ring which are arranged in pair are arranged inside the rubber shell, the main magnetic ring and the secondary magnetic ring are respectively wound with the winding wires, and the winding wires have a multi-strand multi-core stranded wire structure, so that the transmission speed is effectively improved.

Description

Network transformer

Technical Field

The utility model relates to a network communication equipment technical field especially relates to a network transformer.

Background

The network transformer is an indispensable electronic component in a computer network module, and is mainly applied to high-performance digital switches, SDH/ATM transmission equipment, ISDN, ADSL, VDSL, POE powered equipment integrated service digital equipment and the like. The device has the functions of signal transmission, impedance matching, waveform restoration, signal clutter suppression, high-voltage isolation and the like.

With the requirement of ethernet on transmission speed becoming higher and higher, the current gigabit ethernet needs a transmission speed of 10Gb/s, and the conventional network transformer cannot meet the corresponding requirement.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a network transformer, simple structure, the equipment is convenient, has stranded multicore stranded wire structure, effectively improves transmission speed.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:

a network transformer, comprising:

a rubber shell; and

the winding assemblies are uniformly arranged in the rubber shell at intervals; the winding assembly comprises a main magnetic ring and an auxiliary magnetic ring which are arranged in pair, and windings wound on the main magnetic ring and the auxiliary magnetic ring respectively; the main magnetic ring and the secondary magnetic ring are arranged at intervals, and the axial lead of the main magnetic ring is parallel to the axial lead of the secondary magnetic ring; the axial leads of the adjacent main magnetic rings are overlapped or mutually vertical; the winding is a multi-strand multi-core stranded wire, the diameter of the core wire of the winding is 0.05mm-0.20mm, the diameter of the stranded wire of the winding is 0.20mm-1.20mm, and the lay length of the stranded wire of the winding is 1-20 knots/cm.

The network transformer is simple in structure and convenient to assemble, the main magnetic ring and the secondary magnetic ring which are arranged in pair are arranged inside the rubber shell, the main magnetic ring and the secondary magnetic ring are respectively wound with the winding wires, and the winding wires have a multi-strand multi-core stranded wire structure, so that the transmission speed is effectively improved.

In one embodiment, the direction of twist of the wire-wound core wire is the same or opposite to the direction of twist of the wire-wound strands.

In one embodiment, the main magnetic ring and the winding wound on the main magnetic ring form a primary winding; the secondary magnetic ring and the winding wound on the secondary magnetic ring form a secondary winding; the turn ratio of the primary winding to the secondary winding is 1: 1.

in one embodiment, the distance between the main magnetic ring and the secondary magnetic ring is 0.5mm-5 mm.

In one embodiment, the distance between the adjacent main magnetic rings is 0.5mm-3mm, and the distance between the adjacent secondary magnetic rings is 0.5mm-3 mm.

Drawings

Fig. 1 is a schematic perspective view of a network transformer according to an embodiment of the present invention;

FIG. 2 is an exploded view of a network transformer shown in FIG. 1;

fig. 3 is a perspective view of the winding of the network transformer shown in fig. 1;

fig. 4 is an exploded view of the windings of the network transformer shown in fig. 3.

Reference is made to the accompanying drawings in which:

10-rubber shell, 11-containing cavity, 12-welding foot;

20-winding assembly, 21-main magnetic ring, 22-secondary magnetic ring, 23-winding, 231-core wire and 232-strand wire.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 to 4, a network transformer according to an embodiment of the present invention includes a rubber case 10 and a plurality of winding assemblies 20 installed inside the rubber case 10 at uniform intervals.

The middle part of gluing shell 10 is equipped with and holds chamber 11, and even interval installs a plurality of welding feet 12 on the relative both sides lateral wall of gluing shell 11, and welding feet 12 are located and hold the relative both sides of chamber 11. Wherein, the accommodating cavity 11 is used for accommodating and installing the winding assembly 20.

The winding assembly 20 includes a main magnetic ring 21 and a sub magnetic ring 22 which are arranged in pairs, and a winding 23 wound on the main magnetic ring 21 and the sub magnetic ring 22 respectively. The main magnetic ring 21 and the sub magnetic ring 22 are arranged at intervals, and the axial lead of the main magnetic ring 21 is parallel to the axial lead of the sub magnetic ring 22. The main magnetic ring 21 and the winding 23 wound on the main magnetic ring 21 form a primary winding, and the secondary magnetic ring 22 and the winding 23 wound on the secondary magnetic ring 22 form a secondary winding; the turn ratio of the primary winding to the secondary winding is 1: 1. the input line, the output line and the center tap of the primary winding are respectively connected with the welding pin 12, and the input line, the output line and the center tap of the secondary winding are respectively connected with the welding pin 12.

Specifically, in the present embodiment, the distance between the main magnet ring 21 and the sub magnet ring 22 is 0.5mm to 5 mm. The outer diameter of the main magnetic ring 21 is 2.54mm-4mm, the inner diameter of the main magnetic ring 21 is 1.27mm-3mm, and the thickness of the main magnetic ring 21 is 0.76mm-4 mm. The outer diameter of the secondary magnetic ring 22 is 2.54-4mm, the inner diameter of the secondary magnetic ring 22 is 1.27-3 mm, and the thickness of the secondary magnetic ring 22 is 0.76-4 mm. It can be understood that the size of the main magnetic ring 21 and the size of the sub magnetic ring 22 may be equal or different, as long as the above size ranges.

As shown in fig. 1 and 2, in the present embodiment, the adjacent main magnetic rings 21 have the same pitch, the adjacent sub magnetic rings 22 have the same pitch, and the axes of the adjacent main magnetic rings 21 are overlapped. In other embodiments, the axial lines of the adjacent main magnetic rings 21 can also be perpendicular to each other. For example, inside the rubber case 10, the first main magnetic ring 21 is horizontally disposed, the second main magnetic ring 21 is vertically disposed, the third main magnetic ring 21 is horizontally disposed, and the fourth main magnetic ring 21 is vertically disposed, so that they are alternately disposed.

Further, the distance between the adjacent main magnetic rings 21 is 0.5mm-3mm, and the distance between the adjacent secondary magnetic rings 22 is 0.5mm-3 mm.

The winding 23 is a multi-strand multi-core stranded wire, so that the transmission speed and the working frequency can be effectively improved. Wherein, the core wire of the winding 23 is an enameled wire. Specifically, in the present embodiment, as shown in fig. 3 and 4, the winding 23 is a double three-core twisted wire, and in brief, three enameled wires are firstly twisted as the core wires 231 to form the strands 232, and then two strands 232 are twisted once again to form the final winding 23. The twisting direction of the core wire 231 may be the same as or opposite to that of the strand wire 232. It is to be understood that in other embodiments, the winding 23 may be a double stranded wire, a triple stranded wire, a quadruple stranded wire, a quadruple stranded wire, and the like, and is not limited to the double stranded wire and the triple stranded wire in the present embodiment.

In the present embodiment, the diameter of the core wire 231 of the winding 23 is 0.05mm to 0.20mm, the diameter of the strand 232 of the winding 23 is 0.20mm to 1.20mm, and the lay length of the strand 232 of the winding 23 is 1 knot/cm to 20 knots/cm.

In the present embodiment, the core wire 231 of the winding 23 is any one of a QPN enamel wire, a HEX enamel wire, an FIW enamel wire, and a TQPN enamel wire; the direct current resistivity of the winding 23 is 50m Ω to 2000m Ω.

The utility model provides an above-mentioned network transformer, simple structure, the equipment is convenient, and the internally mounted of gluing shell 10 has main magnetic ring 21 and inferior magnetic ring 22 that set up in pairs, and it has wire winding 23 to twine respectively on main magnetic ring 21 and the inferior magnetic ring 22, and wire winding 23 has stranded multicore stranded wire structure, effectively improves transmission speed.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A network transformer, comprising:

a rubber shell; and

2. A network transformer according to claim 1, wherein the direction of twist of the core of the windings is the same or opposite to the direction of twist of the strands of the windings.

3. The network transformer as claimed in claim 1, wherein said main magnetic loop and said winding wound on said main magnetic loop form a primary winding; the secondary magnetic ring and the winding wound on the secondary magnetic ring form a secondary winding; the turn ratio of the primary winding to the secondary winding is 1: 1.

4. a network transformer as claimed in claim 1 wherein the distance between said primary and secondary magnetic loops is in the range of 0.5mm to 5 mm.

5. A network transformer according to claim 1, wherein the distance between adjacent primary magnetic rings is 0.5mm-3mm, and the distance between adjacent secondary magnetic rings is 0.5mm-3 mm.